Lantern.



PATENTED MAY 5, 1908. W. S. HAMM.

LANTERN, APPLICATION FILED N012. 1904.

2 SHEETS-SHEET l.

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O 0 can QQGee o f uuenl'oz I l/animus No. 886,973. PATENTED MAY 5, 1908;

W. S. HAMM. LANTERN.

APPLICATION FILED NOV. 2, 1904.

2 SHEETS-SHEET 2.

Q I /I "UNITED STATES PATENT OFFICE.

WILLIAM S. HAMM, OF CHIFAGO, ILLINOIS, ASSIGNOR TO THE AD AMS ANDWESTLAKE COM- PANY OF ILLINOIS.

LANTERN.

Specification of Letters Patent.

Patented May 5, 1908.

Application filed November 2, 1904. Serial No. 231,103.

inafter escribed for holding or seating the lower edge of the lanternglobe, and whereby the current of air necessary to su port combustionmay enter the interior of the globe and be broken, attenuated or dividedbefore reaching the flame, -so that the light is prevented from beingextinguished and a steady flame, and consequently a reliable signal, isproduced. Heretofore it has been usual to provide a globe for a lanternof this class with an annular bottom flange considered necessary forholding the globe in place, but of late globes have been manufacturedfor such lanterns without such annular bottom flanges, and it has becomenecessary to change certain parts of the lantern body to adapt it to thenew form'of globe.

In devising means for seating a lantern globe of the novel charactermentioned, changes have been required in the inner structure of thelantern whereby to admit a roper current of air to the interior of theglobe and to the flame, the air being primarily received as heretoforethrough openings furnished in the body hoop. These objects I carry outas herein ex lained and illustrated in the drawings, in W ich Figure 1is a vertical section of a lantern showing the invention, the sectionbeing taken to show a removable oil pot locked by means of a bayonetjoint to the body hoop. Fig. 2 is a plan thereof. Fig. 3 is a similarvertical section showing a modification, and Fig. 4 is a lan of Fig.3.Fig. 5 shows a further modi cation.

Similar numerals of reference indicate similar parts in the res ectivefigures.

1 is the base of t e lantern to which are attached guard wires 2connecting with the annular hoop 3 in any suitable manner, and which,extending upwardly to form the correct shape of the guard, unite withthe series of horizontal guard-rings 4. To the upper one of the latteris hinged the cap 5. Formed with the oil pot 6, and at the lower partthereof, is a cup 6" in the wall of which is the slot 7' of a bayonetjoint, and to which wall is attached the spring 8, the free end of thespring being ada ted to fit over a pin 9 projecting from' the 00p 3 andthe slot 7 over a sim1-' larly projecting pin 9". It will be understoodthat except at the locking portions of the hoop, where its cup is bulgedout as shown.

in Fig. 1, the cup 6- of the oil resembles the body hoo 3. he hoop 3above the cup 6 which over it, is pro vided with a row of perforations10 through which the necessary supply of air isreceived for admission tothe interior of the globe 1'1 and to the flame to support combustion.

As shown in Figs. 1 and"2,'the upper portion of the hoop 3 has anannular internal led e 3*, between the inner edge of which an the oil 0t6 an annular space 12' is left through which the air entering the row ofperforations 10, and after reaching the wall of the oil pot, is admittedbetween it and the inner edge of the ledge to the interior of the globe.The portion 3 of the hoop 3 formin the wall around the ledge 3 may bevertica or given a slight curve to conform to the curve or angle of thelower part of the wall of the globe 11, which as seen is devoid of theplpt 6 closely vertical lower flange heretofore common: in

globes for lanterns of this class. The internal ledge 3" and the ortion3 of the-hoop surrounding it, andorming its wall, together rovide aconvenient and firm seat for the glo e 11, to and'from which it may bereadlly fitted and removed, while the annular space 12 between the led eand the oil pot, actin in conjunction wit the annular row of pe orations10, permits a free but attenuated current of air to enter the globe, thelower'part of which, by reason of its outward flare, has a tendency todivert the attenuated current away from the flame, thus lessening thedanger of its extinguishment, and insur ing a steady light. The oil otmay extend slightly above the ledge, tfiu's forming an inner wall actingin conjunction with the wall furnished by the globe for guiding ordeflecting the air as it ascends within the I interior of the lobe.

wall.

hoop,

In both constructions the action is su stantially identical. Anadvantage possessed by the modificationshown inFi s. 3 and 4 is thatprovision is more es- I pecia y made for breaking up or dividing the 7air current as it passes to the flame.

In Fig. the body hook is shown drawn up from one piece of metal, andcontainin as a part thereof the wall 3 which surrounc s the ower part ofthe lobe 11, while the horizontalmember, orle I Thus the outer diameterof the led e is greater .than the diameter of the b0 y and extendsoutwardly therefrom. This construction would be used in the event that aglobe were employed with a bottom edge having a diameter greater thanthat of the body hoop;'and it IS the intention, as shown in Fig. 5, toprovide a construction admitting of the use of a globe not conforming tothe standard at present used. It is obvious that the horizontal led eand the wall 3 may be in one piece, and a so that the the hoop,

ledge may be removable from the hoop. Furthermore, the ledge and wall,as seen in F igs. 1 and 3, may be made detachable from although inpractice the connection is a permanent one. In Fig. 5 the oil pot isshown extending slightly above the edge on which the lower part of theglobe rests so as to assist in deflecting the current of air away fromthe flame, and it is to be understood that in the constructionillustrated in Figs. 1 and 3 the same extension of the oil pot above theledge may be adopted if desired.

I do not restrict myself to the exact details of construction,combination and arge, 3 a is separate from said the exercise ofinvention, may be made by the skilled mechanic; and such departures fromwhat is herein described and claimed, not involving invention, Iconsider as Within the scope and terms of my claims.

Having thus described my invention, I claim 1. In a lantern, thecombination of a body 1100 a globe and an oil pot removably fitted to tie hoop, the hoop bein provided with a lower row of perforations or theinitial admission of air and with an internal flatledge extendingsubstantially to'the body of the oil ot, said ledge the ower edge andand provided at its for admitting air tween the oil pot and the hoop tothe combustiomehamber of the lantern, substantially as set forth.

2. In a lantern, the combination of a body hoo a globe and an oil potremovably fitted to tile hoop, the hoop being provided with a lower rowofperforations tor the initial admission of air and with an outwardlywalled internal flat ledge extending substantially to the body of theoil pot, said ledge being adapted to receive the lower edge and sideportions of the globe, and provided at its inner margin with means foradmitting air past the ledge from between the oil pot and the hoop tothe combustion chamber of the lantern, substantially as set forth.

In testimony whereof I aflix mysignature in presence of two witnesses.

WILLIAM sfnAMM.

being adapted to receive side portions of the 'globe, inner margin withmeans lVitnesses EDGAR ANDREWS, P. G. EMERY.

past the ledge from be'-'

